This three-dimensional warehouse is mainly composed of heavy-duty shelves, heavy-duty four-way shuttles, lifts and logistics lines. The heavy four-way shuttle is the main execution unit of the whole warehouse, simultaneously receiving instructions and handling pallets; Its internal underlying control system software is also broken down into corresponding specific instructions according to the task requirements of WCS, so as to complete a series of operations of the warehouse on the pallet (inventory, delivery, pick-up). The heavy-duty four-way shuttle is not only easy to use, but also has strong stability and ultra-high carrying capacity, and also improves the operational efficiency of the entire warehouse.